seo update

nginx/default.conf

@@ -23,7 +23,17 @@ server {
         proxy_set_header X-Forwarded-Proto $scheme;
     }
 
-    location / {
-        try_files $uri $uri/ /index.html;
+    # Known SPA routes — serve index.html
+    location = / {
+        try_files /index.html =404;
     }
-}
+
+    location ~ ^/(write|history|settings)(/|$) {
+        try_files /index.html =404;
+    }
+
+    # Static assets — serve directly, 404 if missing
+    location / {
+        try_files $uri $uri/ =404;
+    }
+}